Subtract 28/12 from 30/15
1st number: 2 0/15, 2nd number: 2 4/12
30/15 - 28/12 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
30/15 = 30 × 4/15 × 4 = 120/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Subtract the two like fractions:
120/60 - 140/60 = 120 - 140/60 = -20/60 - After reducing the fraction, the answer is -1/3
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